Sony has unveiled a tablet barely 7mm thick that is built around an A4 sized touchscreen made of electronic paper.
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Sony and reMarkable's dueling e-paper tablets
Sony Digital Paper
Sony Digital Paper DPT-RP1/WC Limited Model Color White Japan New w/Tracking F/S
The Sony DPT-CP1 Digital Paper Tablet versus the reMarkable Paper Tablet, by Michael Puhala